Replacement Rep2 extruder stepper motor harness?

[Brett Crawford]

It appears that the wiring harness for the extruder stepper motor is failing on one of our Rep2 printers.  Saw that filament had stopped during a print, and noticed that the stepper motor was "stuttering".  Moving the cable connecting to the motor alternated between this stuttering and it operating fine.

Is there a replacement P/N for this cable?  Either through Makerbot or a 3rd party?  Thanks!

[Jetguy]

Contact MakerBot support or make your own. That's pretty much all there is.

MakerBot likely needs the serial number to figure out if you have an Rev H or Rev G board and the cables are different so again, the best way is just contact them.

[Jetguy]

This place in Australia shows the 2 different assemblies https://www.bilbycnc.com.au/DispCat.asp?CatID=9&SubCatID=112

Specifically:

+ Enlarge Image WRMR2ExtruderCables	Makerbot Replicator 2/2X - Extruder cable (Stepper/Heater/Fan) (Cable Assembly C) This cable runs from the motherboard to the extruder, wher is splits into a red-black pair to connect to extruder front fan, white-black pair that connect to heater cartrige, and 6 pin connector for stepper motor. This cable is used on the Makerbot Replicatr 2 and 2X machines IMPORTANT : this version is without ferrites for rev G monteherboards and earlier
			Qty x $22.50
+ Enlarge Image WRMR2ExtruderCablesRev2	Makerbot Replicator 2/2X - Extruder cable (Cable Assembly C) (Rev 2) This cable runs from the motherboard to the extruder, wher is splits into a red-black pair to connect to extruder front fan, white-black pair that connect to heater cartrige, and 6 pin connector for stepper motor. This cable is used on the Makerbot Replicatr 2 and 2X machines IMPORTANT : this version is for rev H motherboards and includes ferrits
			Qty x $39.95

[Brett Crawford]

Awesome, thank you!  It's happening right as the wires go into the connector at the motor, so maybe I can just shorten it a bit and re-install a connector.

[Brett Crawford]

Does someone have a P/N for the connector that goes into the extruder stepper motor?  I'd like to get a jumper made so I can add in some stress relief to this area.  Thanks!

[Jetguy]

Yes, the thread titled "MakerBot connectors reference"

 

https://groups.google.com/d/msg/makerbot-users/EdTQZTNRfKw/e3nYQWTz1EwJ

[Dan Newman]

On 02/12/2014, 9:27 AM, Brett Crawford wrote:
> Does someone have a P/N for the connector that goes into the extruder
> stepper motor? I'd like to get a jumper made so I can add in some stress
> relief to this area. Thanks!

They are JST connectors. Here's the Digikey part numbers,

Stepper motor plug 455-1162-ND
Stepper motor crimps 455-2148-1-ND (24 - 28 awg)

Dan